Substitute Release Feeling

I mostly pick at white heads or pimples that haven't come to the surface of my skin yet. I get a huge release when I pop a zit or pick at a scab. Does anyone have any good advice on things I can keep with me to both occupy my hands AND get the same release feeling?
i use bubble wrap but if i dont have any of that i just toy around with a rubberband they help most of the time
For information on the skin picking disorder (Dermatillomania), symptoms, causes and treatment methods, get the Complete Guide to Skin Picking Disorders.